# from django.shortcuts import render
# from rest_framework.response import Response
# from rest_framework.views import APIView
# from . seriazer import *
# from . import models
# import re
# class GredaView(APIView):
#     def post(self,request):
#         gname=request.data.get("gname")
#         if Grade.objects.filter(gname=gname):
#             return Response({"msg":"存在",'code':1001})
#         obj=GradeModelSerializer(data=request.data)
#         if obj.is_valid():
#             flay=obj.save()
#             if flay:
#                 return Response({"msg":"成功",'code':1000})
#             return Response({"msg":"失败",'code':1002})
#
#         print(obj.errors)
#         return Response({"msg":"参数错误",'code':1003})
#
#     def get(self,request):
#         objall=models.Grade.objects.all()
#         obj=GradeModelSerializer(objall,many=True)
#         return Response({"code":1000,"data":obj.data})
#
#
#
# class UserView(APIView):
#     def post(self,request):
#         username=request.data.get("username")
#         password=request.data.get("password")
#         password2=request.data.get("password2")
#         email=request.data.get("email")
#         if not re.match(r'[[0-9a-zA-Z_]{0,19}@(.*?).com',email):
#             return Response({'msg':'不符合','code':1004})
#         if password==password2:
#             user_obj=User.objects.filter(username=username)
#             if user_obj:
#                 return Response({"msg":"数据存在",'code':1001})
#             obj=UserModelSerializer(data=request.data)
#             if obj.is_valid():
#                 flay=obj.save()
#                 if flay:
#                     return Response({"msg":"注册成功",'code':1000})
#                 return Response({"msg":"注册失败",'code':1002})
#
#             print(obj.errors)
#             return Response({"msg":"参数错误",'code':1005})
#         return Response({"msg":"两次密码不一致"})
#     def get(self,request):
#         objall=models.Grade.objects.all()
#         obj=UserModelSerializer(objall,many=True)
#         return Response({"code":1000,"data":obj.data})
#
#
# class LoginView(APIView):
#     def post(self,request):
#         username=request.data.get("username")
#         password=request.data.get("password")
#         obj=models.User.objects.filter(username=username).first()
#         if obj:
#             if obj.password==password:
#                 return Response({"msg":"登录成功",'code':1000,'user_id':obj.pk})
#             else:
#                 return Response({"msg":"密码或用户名不正确",'code':1001})
#         else:
#             return Response({"msg":"密码或用户名不正确",'code':1001})
#
# class UserViewShow(APIView):
#     def get(self,request):
#         userobj=models.User.objects.all()
#         boj=UserModelSerializer(userobj,many=True)
#         return Response(boj.data)
#
#
#
#
#
#
